December weather forecast
Mount Lemmon, AZ

Mount Lemmon Ski Valley from atop the Mount Lemmon, Arizona
Mount Lemmon Ski Valley from atop the Mount Lemmon, Arizona

Weather in December

December, the first month of the winter in Mount Lemmon, is still a cool month, with an average temperature ranging between min 24.3°F (-4.3°C) and max 50.5°F (10.3°C).

Temperature

In Mount Lemmon, the average high-temperature in December slightly decreases from a mild 56.3°F (13.5°C) in November to a fresh 50.5°F (10.3°C). In December, the average low-temperature is 24.3°F (-4.3°C).

Rainfall

In Mount Lemmon, Arizona, during December, the rain falls for 5 days and regularly aggregates up to 2.6" (66mm) of precipitation. In Mount Lemmon, during the entire year, the rain falls for 59 days and collects up to 29.57" (751mm) of precipitation.

Snowfall

Months with snowfall in Mount Lemmon are January through April, October through December. Throughout December, in Mount Lemmon, 10.98" (279mm) of snow is accumulated. In Mount Lemmon, during the entire year, snow aggregates up to 64.92" (1649mm).

Daylight

The month with the shortest days is December, with an average of 10h and 4min of daylight.
On the first day of December, sunrise is at 7:06 am and sunset at 5:17 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 5:28 pm MST.

Sunshine

January and December, with an average of 7.8h of sunshine, are months with the least sunshine.
[Resources]

FAQ

What is the temperature in December in Mount Lemmon?

In Mount Lemmon, in December, the average high-temperature is 50.5°F (10.3°C), and the average low-temperature is 24.3°F (-4.3°C).

How many days does it rain in December in Mount Lemmon?

In Mount Lemmon, in December, during 5 rainfall days, 2.6" (66mm) of precipitation is typically accumulated.

How much does it snow in Mount Lemmon in December?

Throughout December, in Mount Lemmon, 10.98" (279mm) of snow is accumulated.

What is the month with the shortest days in Mount Lemmon?

With an average of 10h and 4min of daylight, December has the shortest days of the year in Mount Lemmon.

What is the average length of the day in December in Mount Lemmon?

In Mount Lemmon, Arizona, the average day length in December is 10h and 4min.

When is the sunrise / sunset in December in Mount Lemmon?

In December, on the first day of the month, sunrise is at 7:06 am and sunset at 5:17 pm. On the last day of the month, in Mount Lemmon, sunrise is at 7:24 am and sunset at 5:28 pm MST.

What is the month with the least sunshine in Mount Lemmon?

January and December, with an average of 7.8h of sunshine, are months with the least sunshine in Mount Lemmon.

How long on average sun shines in December in Mount Lemmon?

In Mount Lemmon, Arizona, the average sunshine duration in December is 7.8h.

Average temperature in December
Mount Lemmon, AZ

Average temperature in December - Mount Lemmon, AZ
  • Average high temperature in December: 50.6°F

The warmest month (with the highest average high temperature) is July (76.5°F).
The month with the lowest average high temperature is February (48.3°F).

  • Average low temperature in December: 24.3°F

The months with the highest average low temperature are July and August (49.8°F).
The coldest month (with the lowest average low temperature) is February (21.8°F).

[Resources]

Average rainfall in December
Mount Lemmon, AZ

Average rainfall in December - Mount Lemmon, AZ
  • Average rainfall in December: 2.6"

The wettest month (with the highest rainfall) is August (7").
The driest month (with the least rainfall) is May (0.3").

[Resources]

Average rainfall days in December
Mount Lemmon, AZ

Average rainfall days in December - Mount Lemmon, AZ
  • Average rainfall days in December: 5 days

The month with the highest number of rainy days is August (11 days).
The months with the least rainy days are May and June (2 days).

[Resources]

Average snowfall in December
Mount Lemmon, AZ

Average snowfall in December - Mount Lemmon, AZ
  • Average snowfall in December: 11"

The month with the highest snowfall is February (20.4").
The months with the least snowfall are May, June, July, August and September (0").

[Resources]

Average daylight in December /
Average sunshine in December
Mount Lemmon, AZ

Average daylight in December / Average sunshine in December - Mount Lemmon, AZ
  • Average daylight in December: 10h and 4min

The month with the longest days is June (Average daylight: 14h and 15min).
The month with the shortest days is December (Average daylight: 10h and 4min).

  • Average sunshine in December: 7h and 48min

The month with the most sunshine is June (Average sunshine: 12h and 24min).
The months with the least sunshine are January and December (Average sunshine: 7h and 48min).

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location